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General| Device Type | Feeder Management Relay |
|---|---|
| Model | 750 |
| Mounting | Panel Mount |
| Nominal AC Frequency | 50/60 Hz |
| Digital Inputs | 8 |
| Current Rating | Up to 5 A |
| Frequency Rating | 50/60 Hz |
| Operating Temperature | -40°C to +70°C |
| Protection Functions | Overcurrent, Voltage, Frequency, Directional Power, Breaker Failure |
| Communication Protocols | Modbus, DNP3, IEC 61850 |
| Nominal AC Voltage | 120/240 V AC |
| VT Inputs | 3 |
| CT Inputs | Up to 4 |
| Communication Ports | Ethernet, RS-485 |
| Enclosure Rating | IP54 |
Covers essential procedures for initial relay setup, including cautions, warnings, and inspection checklists.
Explains how to navigate the relay's menu structure, use the keypad, and manage setpoints and actual values.
Provides a general description of the 750/760 Feeder Management Relays, including theory of operation and ordering information.
Details the technical specifications of the relay, covering applicability, inputs, outputs, protection, and control elements.
Covers the mechanical aspects of installation, including drawout case, unit withdrawal/insertion, and rear terminal layout.
Details the electrical connections, including wiring diagrams, phase sequence, current and voltage inputs, and control power.
Describes the front panel layout, including the LCD display, LED indicators, keypad operation, and diagnostic messages.
Explains the use of the 750/760PC software for setpoint programming, actual value reading, and waveform capture.
Covers basic relay configuration, including passcode, communications, clock, event recorder, trace memory, and data logger settings.
Details setpoints for system configuration, including current sensing, VT sensing, and power system parameters.
Defines the setpoints for all protection elements, including overcurrent, voltage, frequency, and breaker failure protection.
Covers setpoints for control schemes such as synchrocheck, manual close blocking, and autoreclose functions.
Includes setpoints for testing relay functions, such as output relays, pickup tests, analog outputs, and simulation modes.
Displays the current state of the relay, breaker, and output relays, including virtual and hardware inputs.
Provides measurements of electrical quantities such as current, voltage, frequency, power, and demand.
Displays maintenance-related data such as trip counters and arcing current.
Stores and displays event information, including trip causes, fault locations, and system events.
Provides technical support contact information, revision codes, and calibration dates.
Discusses communication protocols (Modbus, DNP) and physical layer configurations for the relay.
Details the Modbus protocol, including data link layer, CRC algorithm, and message timing.
Explains Modbus function codes for reading actual values, setpoints, and executing operations.
Covers DNP 3.0 implementation, device profile document, and point lists for communication.
Provides an overview of commissioning tests, including safety precautions, requirements, conventions, and test equipment.
Details testing procedures for logic, virtual, and hardware inputs, as well as output relays.
Covers test procedures for current, voltage, power, and demand metering functions.
Describes testing procedures for various protection elements like overcurrent, voltage, and frequency.
Outlines test procedures for monitoring functions such as current, fault locator, and VT failure.
Details testing procedures for control schemes including setpoint group control, synchrocheck, and autoreclose.
Provides information on adding optional features like Reverse Power to the relay.
Includes the EU Declaration of Conformity for the relay.
Details the GE Multilin Relay Warranty terms and conditions.
